Prof. Rohit Karnik
Co-founder and CTO
Tata Professor of Mechanical Engineering at MIT. His lab spent more than a decade on low-cost ways to make water safe to drink, published in Nature Communications. He leads the science.
Our team
The people behind the filter.
Jal Kavach started in a lab at MIT. Today a small team in New Delhi designs it, tests it, gets it made and takes it to schools, health centres and villages, working alongside the field staff of our partners.
Founders
Dhananjay Goel
Co-founder and CEO
Runs the company and the field programmes, and answers every email. Studied engineering at IIT Delhi, then public policy at Harvard and business at Wharton.
Lab, design and operations
Dr Ashwini Kumar Mohapatra
R&D Scientist
PhD, IIT Kanpur. Runs our lab testing and filter specifications. The Shriram Institute test report on this site is addressed to him.
Dr Aravinth Ekamparam
Research Scientist
PhD, IIT Kanpur, then postdoctoral research at Ohio State University. Works on validating the filter, in our lab and with outside labs.
Vishal
R&D Engineer
B.Tech, IIT Jammu. Designs the filter’s casing and parts, and works with the workshops that make them.
Shan Mohd
Operations
Keeps the company running: certifications, compliance, banking and hiring.
Aditya Yadav
Business Development
Joined in October 2026. Works on new partners and places to sell Jal Kavach.
Advisor
Dr Peter Williams
Advisor since 2024
Spent 30 years at IBM, where he was a Distinguished Engineer and built its water business. He has chaired ARISE-US, a network of companies working on disaster resilience.
Work with us
We are a small team, and we read every note. If you want to help get safe water into more homes, as an engineer, in the field or as a partner, write to Dhananjay.